12051355 has 4 divisors (see below), whose sum is σ = 14461632. Its totient is φ = 9641080.

The previous prime is 12051329. The next prime is 12051373. The reversal of 12051355 is 55315021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55315021 = 877 ⋅63073.

It is not a de Polignac number, because 12051355 - 2⁵ = 12051323 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1205131 + ... + 1205140.

It is an arithmetic number, because the mean of its divisors is an integer number (3615408).

Almost surely, 2^12051355 is an apocalyptic number.

12051355 is a deficient number, since it is larger than the sum of its proper divisors (2410277).

12051355 is an equidigital number, since it uses as much as digits as its factorization.

12051355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410276.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 12051355 is about 3471.5061572753. The cubic root of 12051355 is about 229.2689770537.

Adding to 12051355 its reverse (55315021), we get a palindrome (67366376).

The spelling of 12051355 in words is "twelve million, fifty-one thousand, three hundred fifty-five".